127636610066 has 32 divisors (see below), whose sum is σ = 224555760000. Its totient is φ = 53280882432.

The previous prime is 127636609993. The next prime is 127636610081. The reversal of 127636610066 is 660016636721.

It is a super-2 number, since 2×127636610066² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127636609999 and 127636610026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618791 + ... + 798858.

It is an arithmetic number, because the mean of its divisors is an integer number (7017367500).

Almost surely, 2^127636610066 is an apocalyptic number.

127636610066 is a deficient number, since it is larger than the sum of its proper divisors (96919149934).

127636610066 is a wasteful number, since it uses less digits than its factorization.

127636610066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417826.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 127636610066 in words is "one hundred twenty-seven billion, six hundred thirty-six million, six hundred ten thousand, sixty-six".